From 9d38d864d9fafa3ca290439f400da3823681bf20 Mon Sep 17 00:00:00 2001
From: Jan Philipp Thiele <54978337+jpthiele@users.noreply.github.com>
Date: Tue, 6 May 2025 15:04:38 +0200
Subject: [PATCH] Fully qualify constructor extension

Extending constructors without module specification can lead to undefined behaviour in case of name clashes.
This is fixed by fully qualifying `ArrayInterface.BandedMatrixIndex` when it is extended in the banded matrix ext.
---
 ext/ArrayInterfaceBandedMatricesExt.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/ArrayInterfaceBandedMatricesExt.jl b/ext/ArrayInterfaceBandedMatricesExt.jl
index fcd0fb7b..5eaeb0cd 100644
--- a/ext/ArrayInterfaceBandedMatricesExt.jl
+++ b/ext/ArrayInterfaceBandedMatricesExt.jl
@@ -46,7 +46,7 @@ function _bandsize(bandind, rowsize, colsize)
     end
 end
 
-function BandedMatrixIndex(rowsize, colsize, lowerbandwidth, upperbandwidth, isrow)
+function ArrayInterface.BandedMatrixIndex(rowsize, colsize, lowerbandwidth, upperbandwidth, isrow)
     upperbandwidth > -lowerbandwidth || throw(ErrorException("Invalid Bandwidths"))
     bandinds = upperbandwidth:-1:(-lowerbandwidth)
     bandsizes = [_bandsize(band, rowsize, colsize) for band in bandinds]